In the Caribbean, the new Rosalie Bay resort on Dominica brings luxury for the first time to this wild island with cool cottages, locally carved wood furniture, a big spring-fed swimming pool, and an organic restaurant. On the environmental front, this carbon-negative resort generates more electricity than it needs, thanks to its own towering wind turbine, so the excess goes on the island’s grid.

While superyachts are not known for their environmental correctness, the sleek, new triple-masted 188-foot Twizzle changes that perception. Not only has the yacht been designed to meet strict environmental standards but its owners offset all carbon emissions from its main engine, generators, and tenders. Besides four cabins with cushy interiors and several spacious decks, Twizzle has a crew of eleven, including a chef. The yacht will be available for charter this winter in the Caribbean.

Ever since the actor/environmental activist Robert Redford founded it in 1969, Sundance in Utah has been one of the greenest ski resorts in America. Today, besides the standard recycling protocols, the resort even has a special kiln for turning all used glass into distinctive art and housewares, and it also purchases all of its electricity from wind farms in neighboring states.

In central California’s glorious Big Sur area, Treebones is an off-the-grid retreat where you stay close to nature in low-impact round tents (outfitted, in this case, with queen beds and polished pine floors) known as yurts. Not only is everything recycled here, guests often help with composting as well as with picking produce from the organic garden. This season, the ever-evolving Treebones offers truly intrepid guests the chance to get even closer to nature with a couple of nights in its “human nest,” a large free-form platform made of woven wood, poised above the Pacific Ocean.

In California’s Napa Valley, the new Bardessono resort stuns with its visionary architecture—all wood, glass, steel, and concrete—and ecological correctness, which includes everything from the use of salvaged wood for its construction to secret solar panels. Indeed, Bardessono is so forward-thinking in combining luxury and ecology that it is one of only two hotels in the U.S. to be awarded Platinum status by the organization Leadership in Energy and Environmental Design (LEED).bardessono.com